extract_variables: Extract variables

In eyelinkReader: Import Gaze Data for EyeLink Eye Tracker

Extract variables

Description

Extracts variables from the events table of the eyelinkRecording object. Normally, you don't need to call this function yourself, as it is called during the read_edf with default settings (e.g., import_variables = TRUE).

Usage

extract_variables(object)

## S3 method for class 'data.frame'
extract_variables(object)

## S3 method for class 'eyelinkRecording'
extract_variables(object)

Arguments

object

Either an eyelinkRecording object or data.frame with events, i.e., events slot of the eyelinkRecording object.

Value

Object of the same time as input, i.e., either a eyelinkRecording object with an additional variables slot or a data.frame with variables' information. See eyelinkRecording for details.

See Also

read_edf, eyelinkRecording

Examples

data(gaze)

# by passing the recording
gaze <- extract_variables(gaze)

# by passing events table
variables <- extract_variables(gaze$events)

eyelinkReader documentation built on April 4, 2025, 1:30 a.m.